Share Keyboard/Mouse between PC (windows?) and AndroidAdded extra information that will allow future readers to find the app in question even if the URLs have changed making the link dead. ("[This] is the answer" is a very poor answer, even if the link solves the problem right now).

Linux Mint is rebooting while screen is locked, how do I go about debugging/fixing it?Looks like I've been able to fix it. After leaving an xscreensaver -watch command logging to a file continuously I got an error message that led me to an issue with the graphics driver. Looks like the community drivers crashes X when running out of memory (and it wasn't a proper reboot, just X restarting). I've left it over night twice now and at least it's not crashing X (unfortunately today the screensaver had crashed to desktop without locking the screen, but I suppose that's a different problem).

Linux Mint is rebooting while screen is locked, how do I go about debugging/fixing it?Yeah, I never expected this to be easy to fix, which is why I asked for ways to debug it. Since you provided the most useful answer in terms of debugging it and the bounty was about to run out (only a few minutes left), I figured I'd award it now and continue trying to debug it. I tried running xscreensaver-command manually, looping a bash script to call -next every 5 seconds and it didn't crash in 20+ minutes. Not sure what that tells me, but it almost seems like switching through them faster stops it crashing. O_O

Linux Mint is rebooting while screen is locked, how do I go about debugging/fixing it?I'm not aware of any timeout that expires after 10 minutes. All power management I've found anywhere is completely disabled, it shouldn't even be powering down hard drives. Other than that, I'm not sure. I'll give that script a go, but since it's a work computer sitting there watching it for 10 minutes is likely to be frowned upon. I'll do my best though. Also I'm not sure it's exactly 10 minutes, it's just a rough estimate as I'm often away for a few minutes (getting tea, helping someone) with no problems, but longer breaks kill it.